“Go ahead. Do it, I dare you,” said the Democratic senator. "It's a loser."

Here are the top issues as lawmakers return from the August break.

“We need to know they’re at the top of their game,” Haley told Fox News. “You can’t say that right now looking at Congress.”

"We do need to cut back on spending but a little less hypocrisy would be a good thing," the Utah senator said of his party's stance on the federal deficit.

The Republican senator from Texas has started an investigation into Bud Light’s parent company, Anheuser-Busch, for what he believes is “marketing to children.

Cohen said he is "interested" in unseating Rep. Jerry Nadler (D-N.Y.), a popular liberal lawmaker.